523615489 has 2 divisors, whose sum is σ = 523615490. Its totient is φ = 523615488.

The previous prime is 523615483. The next prime is 523615529. The reversal of 523615489 is 984516325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 496398400 + 27217089 = 22280^2 + 5217^2 .

It is a cyclic number.

It is not a de Polignac number, because 523615489 - 2¹³ = 523607297 is a prime.

It is not a weakly prime, because it can be changed into another prime (523615483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261807744 + 261807745.

It is an arithmetic number, because the mean of its divisors is an integer number (261807745).

Almost surely, 2^523615489 is an apocalyptic number.

It is an amenable number.

523615489 is a deficient number, since it is larger than the sum of its proper divisors (1).

523615489 is an equidigital number, since it uses as much as digits as its factorization.

523615489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 523615489 is about 22882.6460226959. The cubic root of 523615489 is about 806.0045527803.

The spelling of 523615489 in words is "five hundred twenty-three million, six hundred fifteen thousand, four hundred eighty-nine".